Disco using oil

[whitebeach]

hi.

I have a 1999 Disco 2 V8. It is using a lot of oil, nearly 1 litre per 100k's! Just had the valve stems replaced and injectors done, still using oil. The Disco has 324K's on the clock. Any ideas?

 

[jhmover]

1. How much oil is it using?
2. Plugged all the leaks?
3. Does it smoke? If so when and what color?
4. What weight oil you running?
5. Done a compression test?

 

[whitebeach]

1 litre per 100 k's
no leaks
no visable smoke
compression ok
oil 15/40

 

[KyleT]

Do the plugs look oily? Exhaust smell smokey? Didn't leak into the coolant did it?

 

[whitebeach]

Do the plugs look oily? Exhaust smell smokey? Didn't leak into the coolant did it?

No to all these. Unlike a lot of d2 this one doesn't have coolant problems.

 

[Ed Cheung]

So she is using 1 litres of oil per 100 km and had 324 thousand KM on the clock, right?

 

[jhmover]

1 Quart every 66 miles? It's got to be going someplace.

Try a leakdown test?

 

[ezzzzzzz]

There should be some outward sign of leakage. It may take a good powerwashing underneath to clean up enough the see it. I'd suspect VC gaskets but you say head work was just completed. Is there heavy soot in the exhaust tip? Is the oil cap cracked and leaking air allowing oil to get sucked into the intake at an abnormal rate? Check the PCV system for blockage. High mileage engines have loose rings by default so a blocked (pressurized) system may actually be helping oil get pulled into the cylinders and burned or just pushing it pass seals when under power. Is the plastic oil separator in the PS valve cover missing?

 

[riceybean]

Rear main seal leaking into the trans?

 

[Devildog01]

Whats a litres?

 

[Ed Cheung]

Whats a litres?

The British spell it this way.
I.e. Center / centre, etc.

 

[helievacpilot]

hi.

I have a 1999 Disco 2 V8. It is using a lot of oil, nearly 1 litre per 100 km's! Just had the valve stems replaced and injectors done, still using oil. The Disco has 324K km's on the clock. Any ideas?

Fixed it for ya.

BTW. That's a shit-ton of oil. Gotta be going somewhere. Look closer.

 

[ubuntu]

The British spell it this way.
I.e. Center / centre, etc.

Litre is the international spelling and liter is the American spelling, so it's really the Americans who have it fucked up

 

[SGaynor]

With that much consumption, I'd guess rings are gone, and/or the valves are leaking.

I had a suburban (5.3 L) that was burning a qt every tank (350 mi), due to piston #7 having no rings.

But since you had a valve job, and then the problem, my money would be there.

 

[Buddy]

With that much consumption, I'd guess rings are gone, and/or the valves are leaking.

I had a suburban (5.3 L) that was burning a qt every tank (350 mi), due to piston #7 having no rings.

But since you had a valve job, and then the problem, my money would be there.

Yeah, but the OP said no visible smoke. I don't see how that much oil is going through the valves and into the cylinders and you would not see smoke. I used to have an old Mustang that used that much oil. I use a case of oil driving from Upstate NY to NC one time. It didn't smoke much at idle but if I laid into the throttle it left a smoke screen like I was playing Spy Hunter.